- additional exchanges are being talked to
As if that is the problem when liquidity is already too low. You can further dilute liquidity across more exchanges.
Okay it perhaps provides access for some more investors. But access is not likely the major issue limiting Monero investment.
It provides resiliency, even if largely unused. Dash trading was potentially disrupted by the implosion of Cryptsy and the delisting on Bitfinex. Fortunately they could just move over almost instantly to Poloniex and Bittrex, which previously had very little Dash trading.