De facto but not de jure.
The Portuguese colonies were quite different from Rhodesia or South Africa.
Portuguese "settlers" were very recent arrivals, and usually rather poor themselves. Most of them stayed in cities or towns. If they moved to the countryside, it was as tavern-keepers and minor farmers. There never was quite particularly large settler farms, with attendant displacements or removals. Land was not as much an issue - or rather, there was land competition, but it was relatively petty quarrels of white peasant vs. black peasant.
Labor conscription - virtual slavery - was the big bad thing, although much of it was geared to serve big companies. But this was abolished in 1961. There was also no "apartheid" or racial segregation dogma - the "Lusotropicalism" ideology idealized the mixing of races and miscegination. This was more imagination than fact, but it had a kernel of truth. Remaining legal differences between Europeans & Africans were eliminated at the same time (c.1961-62), and full citizenship and civil rights granted to all. This fed into a relentless government propaganda, ongoing since the early 1950s, that the colonies were not colonies, but just overseas provinces of the same multi-continental, multi-racial country, and that everyone, black or white, was a full citizen of Portugal (never mind that citizenship & civil rights meant practically nothing under the totalitarian Salazar regime; but at least the theory was nice.) The last decade and a half also saw massive investment and rapid economic development, making it seem that things were not so bad.
But most importantly, white settlers had next-to-no political power. Administration was exercised entirely from Lisbon. And the relatively recent arrivals meant there was not a body of local white colonists, deeply rooted and galvanized, demanding local power or trying to exercise dominance. The settlers weren't particularly attached to the land or determined to fight it out - they had come as state-sponsored immigrants on the promise of modestly higher incomes, and were willing to leave as quickly as they arrived.
As for criticism, they did face a strong amount of external pressure. Not sure why you imagine they didn't.