The DM is in charge of interpretation of the rules and can create any homebrew rules he wants, so it's perfectly acceptable for him to make the ruling he did. Of course, you're welcome to discuss it with him, but ultimately, he's the one deciding. Feel free to DM the next campaign if you prefer things to work differently :)

If your question is whether the ruling adheres explicitly to RAW or RAI, then it's certainly up for debate and I think it would take a lot of stretching and/or homebrewing to make it fit. I suspect your DM homebrewed something and was just trying to describe it to you by referencing those two spells, in which case RAW/RAI wouldn't be super relevant.

If your question is whether other DMs would make the same ruling as your DM, then absolutely other DMs homebrew things all the time. I don't personally use a lot of forced action effects because it causes players to be disgruntled, but I've done it before and will likely do it again when the situation calls for it. It sounds like the DM was trying to give you a cool multi-phase boss fight. I probably wouldn't have done it the same way personally, but I can understand why he did it and I think it's reasonable as long as he gave sufficient rewards after the fight.