No. Beading is spectacular, although it’s the secondary quality of a coating.

Fact: a coating might be even more self-cleaning being hydrophilic than hydrophobic. The hydrophobicity is a result of very high surface tension a coating generates. It will diminish with time due to contamination but has no connection with the level of protection. To restore hydrophobicity, contact your detailer or have a look at the mainTENance guide.