I think you are talking about angels here and not angles — like triangles, quadrangles, etc.
Remember that Jesus has fasted for forty days in the desert when he was tempted.
I’ve always thought that verse meant that the angels came and praised him and supported him much as a family might support a sick one. Or a church might ministers to one of their members who is dying by taking the spouse some food for the day.
Yep your right “angels here and not angles” angels.
Yes moral support makes some sense and fits into the traditional understanding that they fall into this meaning “A servant; a subordinate; an officer or assistant of inferior rank; hence, an agent, an instrument.”
So, would this not then be point to intersession. After all the argument from others is God/Jesus knows it all and is all powerful, yet this supports the point he lends his ear to others. In this case to strengthen him for the ordeal and the fact he was in flesh form. Or as just another open example he did to Abraham and is capable to changes his intent due to others.
Now the case could be made that in the verse with the angels they were saying supporting things vice asking for help, but it does address one concern often brought up by other denominations in that the heavenly host / the dead do not have any say with the Lord. They obvious do and to believe this interaction from the ones the Lord loves and would not support requests from them is week and blindsided when you consider the love the Lord our God has for us and them.