Update ERC-7627: Revise the description text for Motivation

Merged by EIP-Bot.

Author: chenly

ERCS/erc-7627.md

@@ -16,7 +16,7 @@ This proposal implements the capability to securely exchange encrypted messages
 
 ## Motivation
 
-With the emergence of Layer 2 chains boasting sub-second block times and the proliferation of real-time communication and online chat dApps, there arises a need to make end-to-end encrypted communication on the blockchain feasible. Leveraging asymmetric encryption, we can now facilitate decentralized, end-to-end interoperable messaging protocols as a standard.
+With the emergence of Layer 2 chains featuring sub-second block times and the introduction of account abstraction, the use of end-to-end encrypted communication has facilitated the proliferation of real-time communication and online chat dApps. Leveraging asymmetric encryption now enables the establishment of decentralized, end-to-end interoperable messaging protocols as a standard.
 
 ## Specification