The non dismissal ads are irritating. But asking for a review is not a bad thing, in my opinion.
Also, if a plugin author failed to promote their pro plan, then what do you think how long they can continue their project. It brings a bit chance to sell the pro. Come on; everyone has to pay their bills.
In terms of the client's requirements, there must be a consideration. But it's exceptional. Buy the pro help each other.

I’m not against this tool. Anyone can build anything in this open space, but the justification for this work on this scale makes me worried. Sorry.