What most of the silicon valley morons in their ivory towers don't get is: when unemployment rates and inflation keep following the trends and another stockmarket crash and financial crisis happen within next decade nobody in the general population will be able to afford the bandwidth to run bitcoin.
So in a situation where people would need it it has become inaccessible due to bandwidth requirements which almost nobody will be able to meet simply because internet connection speed won't grow in times when people barely can put food on the table.
Increasing blocksize like this will be the end of bitcoin even if the fork doesn't result in instant meltdown.
Bandwidth grow will slow and because the SV guys' prediction doesn't come true bitcoin will be useless.
With increasing the blocksize like that you also accept that your coins become worthless in case either bandwidth doesn't grow as predicted or adoption doesn't grow as predicted. Effectively you tie the fate of bitcoin to the correctness of your estimates, guesses and predictions which will likely fail.
Reminder: nobody knows the future ... so you are one big parade of fails.
Gavin and Hearn aren't silicon valley morons in ivory towers (that's just their schmaltzy marketing PR). They're actually more like Langley/Bethesda spooks in smoke-filled back rooms.
Regardless, you are correct that it's idiotic, irresponsible, and dangerous to assume the "financial crisis is over" and, as a result, we're about to enjoy a worldwide explosion in retail bandwidth 'because NetFlix.'