No, it’s not, if you are playing by the 3rd edition rules.
As you pointed out that was in an old, 1st edition of the rules.
In today’s games, 3rd ed., if for example the UK player has landed 2 FTRs in KAR (Karelia) to help defend, the UK player would roll for the FTRs (or, on a rare occassion, allow the USSR player to roll for them. A possessive bunch …aren’t we?)
Also, If the USSR player plans to retreat, from KAR in the same example(in order to save Russia by consolidating forces), it would be wise to inform the UK player before the UK players turn. Then the FTRS have defended against the Germans and are saved, rather than HUNG OUT TO DIE! :P