At no point do any of those answers say "If you cast a bonus action spell on your turn you may also cast a reaction spell on your turn"
In fact, we have multiple instances where the rules and Sage Advice state that if you cast a bonus action spell then the you can cast a cantrip with your action. No where does it state, ever, that if you cast a bonus action spell that you can cast a reaction spell on your turn.
Further, we have the following which has previously been quoted in this very thread:
In fact, we have multiple instances where the rules and Sage Advice state that if you cast a bonus action spell then the you can cast a cantrip with your action. No where does it state, ever, that if you cast a bonus action spell that you can cast a reaction spell on your turn.
Further, we have the following which has previously been quoted in this very thread:
Casting a bonus action spell means no other spells that turn but a cantrip with a casting time of 1 action.