How to introduce official parser without hurting anybody's feelings? Make it individual choice.

In solo content give players option to turn it on/off.
In open world group content give party leader option to turn it on/off.
In duty finder content - Split queues. Right next to the "in progress" put an option "join party with parser" and "join party without parser". This option should be also active for roulettes.

Give players choice if they want to play with similarly minded players.