My comment was from the perspective of the stakeholders i.e. governments/academia/spectrum holders, various steering groups/SIG/committees, policy makers, environmentalists, OEM's, chip designers/fabs, banks, telcos et al., who are not only aware of the challenges ahead but have to be fully invested and efficiency matters. [1]

They could adopt the default position suggested by you and do nothing; it will certainly be favourable and indeed profitable for all the incumbents in the short term, but they will only be postponing the inevitable. A new generation of mobile standard is a well-trodden path, from the beginning of 1980's with the advent of 1st Generation of wireless telecommunications and every decade since then. It is without a doubt paved with riches and there will be winners and losers ─ however, the biggest driver has been innovation and not just about the 'win' and to suggest that 5G might fail is pure fantasy.

It is a non-sequitur to compare stand-alone video formats with a constellation of technological advancements, encompassing a multitude of disciplines, which have had a profound impact on us.

[1] https://www.youtube.com/watch?v=nljwtkdHAYw