Realistically, the crash in Dubai has few implications for Tejas export prospects because those were very marginal in the first place. For exports of complex platforms such as combat aircraft to occur, customers must be confident in the entire logistics and support chain: initial and ongoing training and technical assistance, real-world operating costs and mission availability, availability of spare parts, credible ongoing development and integration pathways. Most of these factors can only be established as a consequence or corollary of getting the platform up to speed in domestic service. Even in the very best-case scenario, that is some years away for Tejas. If the platform does eventually reach a level of maturity such that it becomes a realistic (if not particularly compelling) prospect for exports, that an airframe was tragically lost in Dubai in 2025 will not figure strongly in the customer's assessments, though how the investigation into that event is managed can certainly work to enhance or reduce confidence in the relevant parties.
To be fair, probably would've made sense for Armenia, if it ever planned not just to procure things out of spite to Russia, but to fight - especially if with desperate indian discount. Probably the only viable scenario to sell it.
One difficulty is that India/HAL can't discount what it doesn't own, most significantly the GE F404-IN20 engine. Indeed, as an uprated variant requiring customised, low-volume parts, Tejas' engine is likely
more expensive than the F404s fitted to F/A-50 or T-7, let alone RD-93 on JF-17.
