Bad luck MarkCymru!!
I am surprised they did not manage to rebook you on another flight even if not belonging to Skyteam.
Because of such a small technical incident, I missed a connection in Zurich, spent there one night, was then rerouted via London on BA who took me to GIG.
Since then, I fly only with hand luggage and allow ” ample” time to catch conbecting flights, rather than trusting airlines’ ones granting the connecting flight within 35 mn transit.
Even in Helsinki, 30 are too short.