Is this joinign good? Will it hold?

[Stanley123]

I had a plumber connect slightly wider radiator with plastic pipes. I wanted to bend the pipe but he said this pipe wont bend.
IMG20230227183808 hosted at ImgBB - https://ibb.co/MCQC1hv - thats image of the work done

So he just connected it . But i can see there is a lot of ptessure on the coupling does this need to be redone?
Can you bend this plastic pipe?

 

[gmartine]

It isn't ideal and that copper tail looks rather chewed but it will probably hold.

If the copper elbow and tail were cut off and completely replaced with plastic push fit he could've used a longer plastic tail which would of bent more to shape causing less stress on the fitting.

Ideally though it should've been replaced entirely with copper and therefore made to measure.