90km engagement range, with 50000feet + targetting capability is good and on par with naval terms actually.Wasn't the Navy going to be the first customer for the ER as was initially planned ?
Of course the initial plan envisaged the ER to go into the Vizag class destroyers, we know now that's not happening.
For comparison, Aster 30 missiles also provide similar, or slightly better range and performance but almost at double the weight.
Even the Chinese. In their Type 052C and initial Type 052D ships have used HH9/A variants with max range of 105-120km. In Type 051C they used S300FM with 150km range, but those missiles are very heavy missiles. The longest range missiles of China are improved copies of 180km range missiles till now.
Russia will add 250km range 48N series in some of the vessels, but not yet.
So except USA, we are pretty much on par with Barak8 in basic Area Air Defence usage with the best of Europe or even China. Plus Navy calls Barak 8 as Long Range SAM.
Any SAM having longer range will come only in Project 18 Class.