Considering how the air strike against Egypt was crippled by SAMs, the first counter offensive against Egypt was repelled harshly by Artillery, Tanks and more importantly Sagger missiles and Syria breached their lines to nearly pushing them off the heights, I'd say they were caught off guard.

They would've lost the war IF Syria pushed further on the Golan heights to the bridges below than stay on the high ground as gave enough room for Israel to counter attack with their better more armoured tanks. Then Egypt would've never left the protective SAM shield and Israel would've had to sue for peace like Egypt intended.