This is just not correct. Aiyuk was second team all pro last year and has far, far surpassed Samuel both statistically and in skill set. Niners fans almost universally want to trade Samuel and keep aiyuk. Aiyuk was top 7 in receiving yards in the league last year. His production last year is almost equivalent to Samuel over the past TWO years combined.
In the two years before the trade, AJ brown averaged 950 yards. In the past two years, Aiyuk has averaged 1150 yards.
I believe you are significantly underrating Aiyuks value around the league.