It is an option with trade-offs and variables (distance, hours, how busy they are)

Is "a fruit" really a healthier alternative as a meal replacement?

"Which fruit" is also a question that requires some overhead to answer (bananas are convenient but I don't like the flavor, oranges are delicious but messy to eat, etc)

I actually do prefer to have a Soylent in addition to whatever fruits I have available. It's not like you're swearing off all other foods if you choose Soylent as an option.

Everything that was an option still remain to be options, Soylent adds to the list of available options

Soylent is a meal replacement product. A fruit is not. Not to mention, it is indeed faster to drink the bottle you already own, rather than going to a grocery store.