Great article on the IS 500. Just like Mike F. expressed I agree with what you've said.
With the IS 500 FSP variant Lexus tried to expand on it with the RX 500h FSP, TX 500h FSP but lacks so much and is forgetful.
It is very sad that Lexus has thrown in the towel regarding F models. Lexus could have competed and hung with the likes of M, AMG, RS, V, etc.
Expanding into EV's which Americans don't want or need will push Lexus owners to other brands. No one is buying the RZ or UX EV and once the ES EV's arrive, sales will dwindle and might be the demise of the beloved ES. Then there will be no more Lexus sedans, discontinued Lexus sedan of the past HS, GS, LS and in the near future IS and ES....