AN-124 Knocked back by BAA GLA?

I have heard that an AN124 was going to be dropping off a replacement engine for the CO 757 that went tech earlier this week. However, the GLA managemnt refused to let it land as there wasn’t enough parking space to park it. So sent it down to PIK.
I was wondering if this might have an effect on continental’s thoughts of serving glasgow and how they have been (indirectly) treated.
Also was it to do with the time that the AN124 would’ve been arriving or due to its size cos i’m sure it’d be able to be handled at GLA without any problems.