That's actually a little easier said than done during surge tempo strike ops lol. When destroying C4I infrastructure, there's a very non-zero chance of a national leadership figure being killed in the process. The same goes for the tactical phase, where any military vehicle that gets plinked has a small, but non-zero chance of Tsai Ing Wen in the passenger seat, singing along to Taylor Swift on the CD player or something. Plus, not striking at military leadership will be a hinderance to the overall goal of degrading ROC warfighting capabilities, and eventually the ROC's ability to keep its citizens alive, and will drag out the conflict longer than it needs to go, which is generally imprudent in all but a select few circumstances.
Further, again, the communications issue is quite a meaningful factor.
Even if you were to do this, those radios (presumably civilian, seeing as how giving over your own radio equipment isn't the greatest COMSEC decision lol) would be subject to the same EA as all the other radios, would struggle to reach PRC forces (powerful infantry radios are like... 10ish miles of range, though it of course varies by a lot of factors), and larger radios would be a waste of a sortie to drop, assuming it was deployed via cargo aircraft (I'd be surprised if someone wanted to jury-rig a radio + parachute system onto an H-6 and fly it over Taipei, or really onto any other aircraft hardpoint, and do so. It's just an unnecessary mission, and it doesn't net much.
There's also the added "finality" of a landing. It might not sound important, but it's one thing for an ally to surrender while still across 100nm of water, and thus still technically control their territory; rather than having them announce their surrender as they're receiving aid and more PLA troops are flowing into the island, with many of them likely being greeted by grateful citizens, who would - again, more than anything - just be happy to be getting a hot meal and clean water again. I believe it is a relevant political goal in the CPC, that 'reunification' occurs in a manner where they can come out on a positive note, can say they had concluded it decisively and on their own terms, and that it can be painted as a "courageous" mission to "reclaim" not only a territory perceived to have been unjustly ripped away from them at nuclear gunpoint, and which had been a symbol of Western hegemony and Chinese subordination to the western-dominated global order for so long, but also to "reclaim" their "natural" place in the global order as a superpower in their own right, which I believe necessitates at least **some** land-component element. Not saying it'll be a full scale invasion, but I do believe there must be at least (as described before) a "coup-de-grace" even with a small force, which can then proceed to HA/DR tasks, which again, would be a major propaganda victory.
Perhaps I have my impression all wrong, but I simply don't think the PRC would be as keen to sit there watching and waiting for Tsai to pick up the phone (assuming she's alive) and cry uncle, when all it would take to end the war **right then** would be to deploy 2 to 4 PLANMC/PLAGF amphibious brigades from Penghu to a few beachheads, mop up any stubborn local forces right then and there, and to start setting up aid posts and humanitarian facilities to get the citizenry firmly in favor of "let's just end this, I missed food and water a lot."