I'm not trying to say that their importance is to do with plot relevance overall (although I realise it came off that way, sorry). What I'm saying is that removing them loses nothing of importance to the plot, they don't break it so you can release the series quite happily without the plot not making sense or anything similar.
I believe that OVA's are very important overall, but I don't expect them in a release of the TV series either. They don't make or break a release for me and never have and probably never will. Side stories and such are wonderful things and I do like that OVA's and I do want to own them, but I think complaining about them being cut out of the UK release is misplaced. If it was a numbered episode of the series, sure, but I think you can get away with losing an OVA or two - especially when there is a good chance they'll be released on their own later on. It's not like they're lost to the world forever.
I believe that OVA's are very important overall, but I don't expect them in a release of the TV series either. They don't make or break a release for me and never have and probably never will. Side stories and such are wonderful things and I do like that OVA's and I do want to own them, but I think complaining about them being cut out of the UK release is misplaced. If it was a numbered episode of the series, sure, but I think you can get away with losing an OVA or two - especially when there is a good chance they'll be released on their own later on. It's not like they're lost to the world forever.