A great idea however it does cost in person hours which mean that it would cause the cost of the scenery to likely go up. There are a ton of free charts o line too if you don’t want to use Navigraph. Both NAVCanada and the FAA have free online charts. I don’t know about Europe or the rest of the world, but I sure you can find them. As a note Navigraph is soooooo worth the subscription…
And yes the Blackshark AI airport are awful for taxiway numbers (if even the taxi ways are correct).