The UK was always going to have more offensive interests in Services, and wasn't going to be able to sign up to FoM, the key EU ask.
Without services on the table, there's no chance of an agreement being scuppered because it fails to meet UK expectations on them.
Services was always going to be a hard lift given the nature of FTAs, and the UKs competitiveness, existing openness and reluctance to accept regulatory commitments.
Moreover, domestically in the UK, the pressure on government to "get a deal" will drop off considerably after a goods FTA is in place.
It does to an extent, but doesn't need to offer the UK permanent access through a trade deal to get them.
It can temporarily allow some services to keep flowing, then tighten access at its own pace.
The UK economy may be 80% services but most of that is domestic. Important to keep that in mind.
Also, while losing the Single Market will hurt, not having a Services FTA with the EU doesn't mean UK services exports there go to 0.