No, that won't work, because the station that triggers LEILA won't even hear the LEILA. And afaik this LEILA system used on Eshail'2 is passive! That means that users *must* listen to their own downlink - running simplex would be outrageous
Yes that is the issue. Some users decide not to abide by the regulations or recommendations, even when it comes down to something simple like "use your callsign as a username on the forum". Let alone to "only use fullduplex capable equipment on the satellite".
What can we expect when it is recommended to them to use less power? They could just choose to "agree to disagree" and continue.
However, we can assume that it will not be as bad as on the local 2m or 70cm repeater, because there at least is some effort to make to be on the satellite, not just "order a Baofeng at Aliexpress".
Still, to remain ontopic, we have to be careful because we do not yet know the performance of the transponder when in full normal use, but the first tests indicate that we do not need to worry about "being able to receive it even with some de-sensing". If anything, the users of those huge dishes should worry about intermod in their frontend