There's no point in semantic analysis on Global Times English articles. Their writers are usually rather careless with their English. In this case, the original Chinese is better translated as "major" rather than "crucial".
Ah, I should've remembered that Global Times articles sound like they've been put through a dozen languages in google translate. I agree in that case that going that deep into semantics probably wasn't very useful. "Major" does make a lot more sense.
Response time and attack profiles are very big variables. Ballistic missiles have long kill chains that increase exposure to countermeasure and require a host of support assets. They are also easier to shoot down because they are immediately noticed when they are launched. You also can't do kill confirmation as easily with a ballistic missiles strike. A deep penetration stealth bomber allows you to do real time point of attack surveillance, which is pretty important for guaranteeing kills for sensitive or essential targets. You're also going to be able to deliver a greater volume of munitions onto a target with a deep penetration stealth bomber than with a battery of ballistic missiles.
You do make a good point about attack profiles and volume of fire. It would definitely be harder to detect cruise missiles fired from a VLO bomber than a ballistic missile launch.
I'm not so sure about response times though. An IRBM can get to its target in around 20 minutes or less, that's pretty hard to beat for a subsonic bomber, unless you're already airborne and in a position to launch when a target is detected. But against static targets like military bases, I agree the additional volume of fire is probably much more important.
H-20 is far and away their most important upcoming project in the aerospace side of things. Nothing comes close to it.
How is ballistic missile able do the job of H-20?
I'm new to PLA watching as a whole, but I'm under the impression that the H-20's primary mission would be striking heavily defended targets within contested airspace (i.e. if you sent an H-6 there it would get shot down). I was originally wondering "why would you need to send a VLO bomber and wait several hours to bomb someplace like Guam, when you can just send a salvo of DF-26s and get it done in less than half an hour?" But the points made my other forum members in response have already enlightened me about the advantages a VLO bomber enjoys over IRBMs for certain missions, even if it isn't a complete subsitute.