Yes that's true but on the other hand if you followed the ICO sale you could notice that their prediction to sell that amount of tokens was way way too high. Crypto reserve and team portion combined had the majority over public token pool after ICO so logically there was no other way but to prolong sale period - instead they launched gamma.
That might look like a slap to early investors but it actually was not that bad. If I recall correctly ICO sale started 1ETH for 100k, ended at 1ETH for 90k tokens and Gamma started with 1ETH for 75k - this way early investors still maintain better exchange rate.
The fact that gamma was not announced before or even a possibility of something like that is a subject for this and every other teams to discuss and learn not to be too optimistic and overconfident. Gamma was not very bad thing for early investors  IMO project itself and sales suffered more - ICO ended with something like 7k token holder - its nearly a month now with gamma and its ~8,4k holders so in my personal opinion selling is a bit slow, main reason - people dont like unannounced surprises and are a bit hesitant to buy now.