Not sure I would say they were being smart. How do you transition a WiMAX network that is based on TDD onto LTE which will be FDD? Oh and when will this happen exactly? 3.5 GHz is WELL DOWN the priority list for any potential LTE if and when LTE actually arrives here in Europe. I would say Bollore's licence term is likely to run out before there are the economies of scale for any 3.5 GHz LTE devices.
I hear more about LTE at 800 MHz than at the higher frequencies. The mobile operators are more interested in achieving coverage for more of their voice centric services with a little data capability added for good measure. I don't hear much said about delivering true mobile broadband services with meaningful bandwidths in bands such as 2.6 GHz. I remain unconvinced that LTE will actually be deployed anytime soon. WiMAX has and will continue to be the driving force for 4G services.
I leave you with this thought, where have we been told that there is LTE imminent. Oh yes where there is currently a mobile WiMAX network such as US, Russia, Japan, Taiwan ................... What a coincidence;-)