Is Lee Jae-myung's ”innocent” ruling a factor? The approval rating of the largest opposition party far exceeds that of the ruling party (South Korea)

The results of a public opinion poll released on the 31st showed that the approval rating of the main opposition Democratic Party of Korea (MDP) far surpassed that of the ruling People Power Party.
This may be a reflection of the fact that Democratic Party leader Lee Jae-myung was found "not guilty" in his appeal hearing on charges of violating the Public Offices Election Act, overturning the first-instance verdict.
The survey of party support rates for the fourth week of March was conducted by the South Korean polling agency "Real Meter" on the 26th to 28th of this month among 1,510 voters aged 18 and over.
According to the survey, the Democratic Party received 47.3% of the votes, while the ruling party received 36.1%. The Democratic Party's votes increased by 3.7 percentage points compared to the previous survey (the third week of March), while the ruling party's votes fell by 3.9 percentage points.
The gap between the two parties has widened to 11.2 percentage points. In the survey on "suitability of candidates for the next presidential election," Lee (46.9%) far surpassed the others, increasing by 2 percentage points from the previous survey (2nd week of March).
This was followed by Minister of Employment and Labor Kim Moon-soo at 16.3%, Daegu Mayor Hong Jun-pyo at 7.1%, and former Prime Minister Han Dong-hoon at 1.6%.
The party leader received 6.7%, followed by Seoul Mayor Oh Sehun with 4.8%.