Boost - Levels

Am I the only one who think that the fact that the strength of boosts depend on the lvl (fief numbers) of an alliance is demotivating and unfair.

Can somebody please explain me for what this is good for!

Why an equal equipped king from a top 3 alliance is much better than me in attack and defence?

Isn’t it enough, that a top alli has more strong kings than others?

Should additional their boosts really be also stronger than the same boosts from other allis?