Short answer is certainly NO. Flying it (even in the private category) is an offense.
I'm not too sure if you buy the bladders direct from Robinson themselves, or whether other manufacturers offer them - but either way a written statement from Robinson may well be needed for IAA/EASA to even act. And I'm somewhat surprised Robinson wouldn't already have done that if the market can't be managed.
Give IAA a call. Then depending on answer, follow it up and get whatever they say in writing.
You also have the usual grey area of the AMOC process that may be a way out... I think the fees would be somewhat significant.
From EASA themselves:
EASA does not approve AD compliance time extension requests for individual cases.
For an aircraft registered in an EASA Member State, the National Aviation Authority of the Member State can grant individual (temporary) exemptions on AD compliance time in the event of unforeseen urgent operational circumstances or operational needs of a limited duration, in accordance with
Regulation (EC) No 216/2008, Article 14.4.
For any other aircraft, the State of Registry authority should be contacted.
An extension of the AD compliance time for an individual product without ‘compensating factors’ that would provide for an equivalent level of safety is not to be considered as Alternative Method of Compliance (AMOC) to an AD. See also
AMOC FAQ.