This is not true.
We use “check tutorials” when it’s clear an aircraft has some misunderstanding of commands - but it’s the most gentle command we have. For example:
I send “check tutorials” when an aircraft has been cleared for the ILS by approach, but when the check in with me on tower the say “on final for runway xx” instead of “on the ILS”. It’s a simple mistake and one I would certainly never ghost for. But it’s an improper radio call, and if the pilot is someone who wants to get better, hopefully they will either watch more tutorials, or even reach out directly to ask why they were given “check tutorials”. (I take a screenshot almost every time I send “check tutorials, in the hopes that the pilot will reach out and ask why, and it can be turned into a learning moment… sadly, I think I’m contacted about 2% of the time.)
Now - “please follow instructions or you will be ghosted” is more serious. However, even this command does not mean that there is a 100% chance you will be ghosted. This is used as a final warning - if the aircraft continues to disobey commands after that command, a ghost is highly likely. If an aircraft tried to cut in sequence, they’re most likely going to get a “please follow instructions” - but I get it. When there are six planes in the sequence, it can be easy to get confused - so if after the “please follow instructions” the aircraft realizes it’s mistake and rejoins the proper sequence then all is forgiven and they won’t run into issues. On the other hand, if they continue to cut off another aircraft… yes, there’s going to be a ghosting.
I would almost never recommend quitting unless you receive a “please follow instructions” and you have absolutely no idea why, or what you’re doing wrong and how to fix it - then it may be best to leave. But if you do… take a screenshot of the log and the map real quick then back out. Contact the controller. Ask what was wrong. And learn from what happened so you won’t make the mistake again.